Road-machine



J. H. McLEODf ROAD MACHINE.

' APPLICATION FILED MAY 22, 1919. 1,337,241 \3 Patented Apr. 20, 1920.

N 4 SHEETS-SHEET 1.

WITNESSES ill IAII/EIVTOR J Z Z/ 1 45619 A TTORNE rs,

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WI T/VESSES J. H. McLEOD. ROAD MACHINE.

APPLICATION FILED MAY 22, 1919- Patentd Apr; 20, 1920,.

4 SHEETS-SHEET 2.

A TTOR/VEYS J. H. McLEOD.

ROAD MACHINE.

, APPLICATION FILED MAY 22. 1919- 1,337,241 Patented Apr. 20, 1920.

4 SHEETS-SHPQI 3.

4 TTOR/VEVS J. H. McLEOD.

ROAD MACHINE.

I APPLICATION FILED MAYZZ, 1919. 1,337,241 Patented Apr. 20, 1920.

1- SHEETS-SHEET 4.

lllllll 1| WITNESSES INVENTOR 4 TTOHNEYS sia citizen of the Unitedtates, and a resident 6f Topeka in thecounty ofShawneeand State of anduseful Improvements in Rad'Mach1nes, of which the following 'is aspecification.

crushing lumps when dry and; squeezing the "UNITED STATES PATENT OFFICE.

J'OHN-H.= MGLEOD, OF TOPEKA,'KANSAS.

ROAD-MACHINE.

' Specification of Letters'Patent. 1 31 91113911 A 1',:20,1920,

Application filed" May 22, 1919. Seria1No. 298,9 83.

"To all whom it may concern Be it known." that I "JOHN H. Molunon,

QJIISELS; have invented certain "new My 'inven'tion is an improvement inroad "machines; and has for itsobject to'provide a machine of thecharacter specified which will "work' the road "whether wet or dry,

water out of the ruts and packing the soil from the high places to thelowplaceswhen wet, and afterward finishing an'df smooth ng the road,wherein thecrushinga'nd packing is bro-ught about 'bya' roller having aspiral "or spiral ribs which-works the soil as it moves thereover.

-In the drawings: y

F igure'l is a side view ofthe-impro'ved machine -Fi'g. 2 isalongitudinalsection;

Fig. 3 isaiplanvierv; v

Fig54 'is'an enlarged detail showing one of the tension'rollers for thedriving chain;

Fig. 5 is a section on-the line=55 of Fig. 2;

' Fig.' 6 is 'ad etail' of the-scraper operating mechanism; p

fFig. 7 is a vertical-section throughone of the hearings ofthe'finishing roller;

Fig. "8 is a "front view of the "packing T roller, with' thel'frame'insec'tion S r"'viewofranother"form "of packing i roller.

l thepresent emodiment of the invention a=fsuitablefranie lis'provided', 'which*is sup- 2 and at 1 its front end' by -a pair 0f."front wheels' 3. These'wheelsii are. journaled 'on spindles 4; "on theends *of' an aXle- 5,'-which is yieldingly connected with the frame, and

Y the spindles are "hinged" to 1 the ends of the "axle, and areconnected tomove togetherby means of a link 6' which is I pivoted at itstends" to arms '7 extending rearwardly' from Y the spindles.

-A plate 8"issecured-t'0'the top of the-axle, andit-will be'noticedthat-'this axle is of hol'low construction, 'loeing -square intheprese'nt instance, and the ends of the plate "8are-oiiset upwardly, asindicated at 9.

Eaclr'of the said endsis slidably connected byva rod 10 with the framel, -and"a 'coil fspringll is arranged between the framef'and each totthe "upwardly offset "ends"' 9, the

" spring a 'cting normally to jpress the frame upwardly. Themedl0"being, however ;isl id- -.ably connected with the" oiiset end 9' of'the plate may move downwardly with "respect thereto, thus providing aspring support for the frame.

' The rollerQhas journalfp'ins l2iat itscnds,

rand these ,pins are journaled in J sectional hearings on the undersidesofjplates' l3.

Eachof these plates has upwardly'fci'irved portion. 14 at its rear end,which is pivoted to the frame 1 as indicated at 15 at the rear end oftheframe. At'their forward-ends the plates 13 have openings throughwhich extend pins16dependingkfrom the frame 1, and a coil spring 17encircles each pin between the plate'13 and the frame, acting normallyto press the plate downward. "Thusxa yielding mounting is providedfor'the' roller 2. Thisiroller is driven topropel themarun ofeach' chain18 is tensionediby an idler 23 whichis arran 'ed'on a braceplateQ/Lextending longitudinally ofthe frame. T he machine is steered by:Ineansfot a steering column '24 which is suitably supported by theframe, the-said column'havin'g'at its lower end a'worln 25 which meshes"with a Worm wheel 26 journaled on an auxiliary frame" 97 which connectsthe front axle with a cross bar 28'of the frame. This-wheel26 isconnected by a 1ink'29 with the-arms 7 of one of the spindles, and *itwill be" obvious that'when the wheel 26 is rotated by means of thesteering column the wheels" 3 will be swung to guide the frame.

The packing roller 30' is arranged-in front of the finishing roller,the-"said packing roller having a shaft 31 whose ends are journaled inthe rear ends of the plates 32 whose forward ends are pivoted to theframe 1, as indicated at 33. Rods 34 are connected with the ends of theshaft 31, each of the rods having an eye engaging the shaft, and theserods extend upwardly through the frame 1 and are engaged by wheeled nuts35 above the frame. Thus by means of the wheelel nuts the shaft 31 maybe raised or lowered to raise or lower the packing roller with respectto the frame, that is, to regulate the pressure of the packing roller onthe soil.

The roller 30 may have a single spiral rib 36 as shown in Fig. 8, thesaid rib being continuous from one end to the other, or the roller 37,as shown in Fig. 9, may have a spiral rib 38 at each end, the said ribsbeing symmetrical and acting to force the soil outwardly in bothdirections from the center of the roller. Either form of roller may beused, the rollers .being interchangeable.

Guide brackets 39 depend from the frame 1 'fadj'acent to each plate 32,to guide the vertical movement of the said plates during adjustment.

As shown in Fig. 7, the journal pins 12 are journaled in sectionalbearings 40 011 the plates 13, the sections of the bearings beingsecured to each other and to the plates by bolts and nuts 41. Thejournal pins are arranged within a bushing 42 and a ball bearing 43 isarranged within the bushing between the shaft and the bushing.

v The upper section of the bearing and the plate have registeringopenings forming an oil passage, and an oil cup 44 is connected with theopening for lubricating the bearing. It will be noticed, referring toFig. 7,

that the bushing has an opening registering with those of the plate andthe upper bearing section.

Means is provided for scraping accumulations of soil off the peripheralsurface of the finishing roller. The said means comprises a scraperblade 45 which is secured to a-shaft 46 journaled in the frame 1 in rear1 of the'roller 2. Rods 47' are connected with the opposite ends of thescraper blade, and these rods pass forwardly and upwardly atan inclinethrough bearing plates 48 on the frame. Wheel nuts 49 engage the rodsabove the bearing plate, and it will be evident that by turning thewheel nuts in the I proper direction the scraper blade may be movedtoward or from the finishing roller .to scrape accumulations therefrom.

The machine is the wheel on the steering post 24. The

,packingroller 30 moving over the road surfacepacks the soil or roadmaterial, movlng it from the high places and filling up the low places.If the soil is muddy it is worked just the same, the water beingsqueezed out and permitted to drain away. Afterward, the finishingroller 2 comes into play, thoroughly smoothing and packing the soil orroad material to present a finished surface.

The finishing roller is provided with a hood 50 which covers the top ofthe same, the hood being secured to the main frame.

I claim:

1. A machine of the character specified comprising a main frame, frontwheels for supporting the front end of the frame and arranged to swingto guide the frame, a finishing. roller journaled transversely of theframe at the rear thereof, means for driving said roller to propel theframe, and

a packing roller journaled transversely of the frame in front of thefinishing roller and vertically adjustable, said packing 'roller havinga spiral rib on the periphery thereof for the purpose specified, platespivarranged to swing to guide the frame, a

finishing roller journaled transversely of the frame at the rearthereof, means for driving said roller to propel the frame, and apacking roller journaled transversely of the frame in front of thefinishing roller and vertically adjustable, independently of thefinishing roller.

3. A machine of the character specified comprising a main frame, frontwheels for supporting the front end of the frame and arranged to swingtoguide the frame, a finishing roller journaled transversely of the frameat the rear thereof, means for driving said roller to propel the frame,a packing roller journaled transversely of the frame in front of thefinishing roller and vertically adjustable, plates pivoted to the frameat the rear corners thereof and extending forwardly below the frame, thefinishing roller having journal pins ournaled on the said plates, andsprings arranged between the forward ends of the plates and the frame.

4. A machine of the character specified com risin a main frame a ackinroller arranged transversely of the frame intermediate its front andrear ends, an auxiliary frame pivoted at its front end to the main frameand carrying at its rear end the packing roller, and a connectionbetween the main frame and the rear end of the auxiliary frame foradjusting said rear end of the auxiliary frame vertically, wheels forsupporting the front end of the main frame, and a finishing roller forsupporting the rear end of the main frame.

5. A machine of the character specified comprising a main frame, apacking roller 7 arranged transversely of the frame intermediate itsrear and front ends, an auxiliary frame pivoted at its front end to themain frame and carrying at its rear end the packing roller, and aconnection between the 10 main frame and the rear end of the auxiliaryframe for adjusting said rear end of the auxiliary frame Vertically.

JOHN H. MoLEOD.

ELIZABETH 330mm

